DESCRIPTION
Shifting from 1st to 6th is performed by the TCM turning shift solenoid valves SL1, SL2, SL3, SL4 and SL on and off. If an open or short circuit occurs in any of the shift solenoid valves, the TCM controls the remaining normal shift solenoid valves to allow the vehicle to be operated. Refer to FAIL-SAFE CHART [05/2013 - ] .
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0778 | An open or short circuit (output signal duty is 0% or 100%) is detected by the TCM in the shift solenoid valve SL2 circuit while driving and shifting gears (SL2 output signal duty is more than 0% and less than 100% under normal conditions) (1-trip detection logic). | Open or short in shift solenoid valve SL2 circuit Shift solenoid valve SL2 TCM |
MONITOR DESCRIPTION
This DTC indicates an open or short in the shift solenoid valve SL2 circuit. The TCM commands gear shifts by turning the shift solenoid valves on or off. When there is an open or short circuit in any of the shift solenoid valve circuits, the TCM detects the problem, illuminates the MIL and stores the DTC. The TCM also performs the fail-safe function and turns the other normal shift solenoid valves on or off (in case of an open or short circuit, the TCM stops sending current to the circuit).
While driving and shifting gears, if the TCM detects an open or short in the shift solenoid valve SL2 circuit, the TCM determines there is a malfunction. Refer to FAIL-SAFE CHART [05/2013 - ] .
This sensor detects the rotation speed of the counter gear which indicates the output speed of the transaxle. By comparing the input turbine speed (speed sensor NT) signal with the counter gear speed (speed sensor NC) signal, the TCM detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure according to various conditions. As a result, the gears shift smoothly.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0791 | The speed sensor input voltage is either higher than 1.9 V or below 0.1 V for 2 seconds or more (1-trip detection logic). | Speed sensor NC (speed sensor) Transmission wire TCM |
| P0793 | When the vehicle speed is 25 km/h (15.54 mph) or more, the counter gear speed is less than 300 rpm for 2 seconds or more (1-trip detection logic). |
The NT terminal of the TCM detects a pulse signal from the speed sensor NT (input RPM). The TCM calculates gear shifts by comparing the signal from speed sensor NT with the signal from speed sensor NC.
While the vehicle is operating in 2nd, 3rd, 4th or 5th gear with the shift lever in D, if the input shaft speed is less than 300 rpm*1 although the output shaft speed is more than 1000 rpm*2, the TCM interprets this as a fault, illuminates the MIL and stores the DTC.
HINT
- *1: A pulse is not output or is irregularly output.
- *2: The vehicle speed is 50 km/h (31 mph) or more.
This sensor detects the rotation speed of the counter gear which indicates the output speed of the transaxle. By comparing the input turbine speed (speed sensor NT) signal with the counter gear speed (speed sensor NC) signal, the TCM detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure according to various conditions. As a result, the gears shift smoothly.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0791 | The speed sensor input voltage is either higher than 1.9 V or below 0.1 V for 2 seconds or more (1-trip detection logic). | Speed sensor NC (speed sensor) Transmission wire TCM |
| P0793 | When the vehicle speed is 25 km/h (15.54 mph) or more, the counter gear speed is less than 300 rpm for 2 seconds or more (1-trip detection logic). |
The NT terminal of the TCM detects a pulse signal from the speed sensor NT (input RPM). The TCM calculates gear shifts by comparing the signal from speed sensor NT with the signal from speed sensor NC.
While the vehicle is operating in 2nd, 3rd, 4th or 5th gear with the shift lever in D, if the input shaft speed is less than 300 rpm*1 although the output shaft speed is more than 1000 rpm*2, the TCM interprets this as a fault, illuminates the MIL and stores the DTC.
HINT
- *1: A pulse is not output or is irregularly output.
- *2: The vehicle speed is 50 km/h (31 mph) or more.
The TCM uses the vehicle speed signal and signals from the transmission speed sensors (NC, NT) to detect the actual gear (1st, 2nd, 3rd, 4th, 5th or 6th gear).
Then the TCM compares the actual gear with the shift schedule in the TCM memory to detect mechanical problems of the shift solenoid valves and valve body.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0796 | Either condition is met (2-trip detection logic): The engine revs freely when a shift to 2nd or 6th gear is commanded. The following condition is met twice: When a shift to 1st gear is commanded, 2nd gear is engaged. | Shift solenoid valve SL3 remains open or closed Transmission valve body assembly is blocked Automatic transaxle assembly (clutch, brake, gear, etc.) |
The TCM commands gear shifts by turning the shift solenoid valves on and off. According to the input shaft speed, intermediate (counter) shaft speed and output shaft speed, the TCM detects the actual gear (1st, 2nd, 3rd, 4th, 5th or 6th gear). When the gear commanded by the TCM and the actual gear are not the same, the TCM illuminates the MIL and stores the DTC.
The TCM uses the vehicle speed signal and signals from the transmission speed sensors (NC, NT) to detect the actual gear (1st, 2nd, 3rd, 4th, 5th or 6th gear).
Then the TCM compares the actual gear with the shift schedule in the TCM memory to detect mechanical problems of the shift solenoid valves and valve body.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0796 | Either condition is met (2-trip detection logic): The engine revs freely when a shift to 2nd or 6th gear is commanded. The following condition is met twice: When a shift to 1st gear is commanded, 2nd gear is engaged. | Shift solenoid valve SL3 remains open or closed Transmission valve body assembly is blocked Automatic transaxle assembly (clutch, brake, gear, etc.) |
The TCM commands gear shifts by turning the shift solenoid valves on and off. According to the input shaft speed, intermediate (counter) shaft speed and output shaft speed, the TCM detects the actual gear (1st, 2nd, 3rd, 4th, 5th or 6th gear). When the gear commanded by the TCM and the actual gear are not the same, the TCM illuminates the MIL and stores the DTC.
Shifting from 1st to 6th is performed by the TCM turning shift solenoid valves SL1, SL2, SL3, SL4 and SL on and off. If an open or short circuit occurs in any of the shift solenoid valves, the TCM controls the remaining normal shift solenoid valves to allow the vehicle to be operated. Refer to FAIL-SAFE CHART [05/2013 - ] .
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0798 | An open or short circuit (output signal duty is 0% or 100%) is detected by the TCM in the shift solenoid valve SL3 circuit while driving and shifting gears (SL3 output signal duty is more than 0% and less than 100% under normal conditions) (1-trip detection logic). | Open or short in shift solenoid valve SL3 circuit Shift solenoid valve SL3 TCM |
The TCM commands gear shifts by turning the shift solenoid valves on or off. When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem, illuminates the MIL and stores the DTC. The TCM also performs the fail-safe function and turns the other normal shift solenoid valves on or off (in case of an open or short circuit, the TCM stops sending current to the circuit). Refer to FAIL-SAFE CHART [05/2013 - ] .
Shifting from 1st to 6th is performed by the TCM turning shift solenoid valves SL1, SL2, SL3, SL4 and SL on and off. If an open or short circuit occurs in any of the shift solenoid valves, the TCM controls the remaining normal shift solenoid valves to allow the vehicle to be operated. Refer to FAIL-SAFE CHART [05/2013 - ] .
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0798 | An open or short circuit (output signal duty is 0% or 100%) is detected by the TCM in the shift solenoid valve SL3 circuit while driving and shifting gears (SL3 output signal duty is more than 0% and less than 100% under normal conditions) (1-trip detection logic). | Open or short in shift solenoid valve SL3 circuit Shift solenoid valve SL3 TCM |
The TCM commands gear shifts by turning the shift solenoid valves on or off. When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem, illuminates the MIL and stores the DTC. The TCM also performs the fail-safe function and turns the other normal shift solenoid valves on or off (in case of an open or short circuit, the TCM stops sending current to the circuit). Refer to FAIL-SAFE CHART [05/2013 - ] .
Shift solenoid valve SLT controls the transmission line pressure for smooth transmission operation based on signals from the throttle position sensor and vehicle speed sensor. The TCM adjusts the current to shift solenoid valve SLT to control hydraulic line pressure coming from the primary regulator valve. Appropriate line pressure assures smooth shifting with varying engine outputs.
Scheme 394
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2714 | The TCM detects a malfunction in shift solenoid valve SLT (ON side) according to the difference in speed between the turbine and output shaft, and also by the ATF pressure. (2-trip detection logic) | Shift solenoid valve SLT remains open Shift solenoid valve SL1, SL2, SL3 or SL4 remains open or closed Transmission valve body assembly is blocked Automatic transaxle assembly (clutch, brake, gear, etc.) |
The TCM calculates the amount of heat absorbed by the friction material based on the difference in speed (clutch slippage) between the turbine and output shaft. The TCM turns on the MIL and stores this DTC when the amount of heat absorption exceeds the specified value.
When shift solenoid valve SLT remains on, the line pressure goes down and clutch engagement force decreases.
Note. If driving continues under these conditions, clutches will burn out and the vehicle will no longer be drivable.
Shift solenoid valve SLT controls the transmission line pressure for smooth transmission operation based on signals from the throttle position sensor and vehicle speed sensor. The TCM adjusts the current to shift solenoid valve SLT to control hydraulic line pressure coming from the primary regulator valve. Appropriate line pressure assures smooth shifting with varying engine outputs.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2714 | The TCM detects a malfunction in shift solenoid valve SLT (ON side) according to the difference in speed between the turbine and output shaft, and also by the ATF pressure. (2-trip detection logic) | Shift solenoid valve SLT remains open Shift solenoid valve SL1, SL2, SL3 or SL4 remains open or closed Transmission valve body assembly is blocked Automatic transaxle assembly (clutch, brake, gear, etc.) |
The TCM calculates the amount of heat absorbed by the friction material based on the difference in speed (clutch slippage) between the turbine and output shaft. The TCM turns on the MIL and stores this DTC when the amount of heat absorption exceeds the specified value.
When shift solenoid valve SLT remains on, the line pressure goes down and clutch engagement force decreases.
Note. If driving continues under these conditions, clutches will burn out and the vehicle will no longer be drivable.
Refer to DTC P2714. Refer to DESCRIPTION .
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2716 | Open or short is detected in the shift solenoid valve SLT circuit for 1 second or more while driving (1-trip detection logic). | Open or short in shift solenoid valve SLT circuit Shift solenoid valve SLT TCM |
When an open or short in the shift solenoid valve SLT circuit is detected, the TCM interprets this as a fault. The TCM will turn on the MIL and store the DTC.
Refer to DTC P2714. Refer to DESCRIPTION .
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2716 | Open or short is detected in the shift solenoid valve SLT circuit for 1 second or more while driving (1-trip detection logic). | Open or short in shift solenoid valve SLT circuit Shift solenoid valve SLT TCM |
When an open or short in the shift solenoid valve SLT circuit is detected, the TCM interprets this as a fault. The TCM will turn on the MIL and store the DTC.
The TCM uses the signals from the throttle position sensor, air flow meter, input turbine speed sensor, output speed sensor and crankshaft position sensor to monitor the engagement condition of the lock-up clutch.
The TCM compares the engagement condition of the lock-up clutch with the lock-up schedule in the TCM memory to detect shift solenoid valve SLU, valve body and torque converter mechanical problems.
Scheme 395
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2757 | Lock-up does not occur when requested (2-trip detection logic). | Shift solenoid valve SLU remains open or closed Transmission valve body assembly is blocked Torque converter assembly Automatic transaxle assembly (clutch, brake, gear, etc.) Line pressure is too low |
Torque converter lock-up is controlled by the TCM based on the input turbine speed sensor (speed sensor NT), output speed sensor (speed sensor NC), engine speed, engine load, engine temperature, vehicle speed, ATF temperature and gear selection. The TCM determines the lock-up status of the torque converter by comparing the engine speed (NE) to the input turbine speed (NT). The TCM calculates the actual transmission gear by comparing the input turbine speed (NT) to the output shaft speed (NC). When conditions are appropriate, the TCM requests "lock-up" by applying control voltage to shift solenoid valve SLU. When shift solenoid valve SLU is turned on, it applies pressure to the lock-up relay valve and locks the torque converter.
If the TCM detects no lock-up after lock-up has been requested or if it detects lock-up when it is not requested, the TCM interprets this as a fault in shift solenoid valve SLU or lock-up system performance.
The TCM will turn on the MIL and store the DTC.
Example
When the following is met, the system judges it to be a malfunction.
There is a difference in speed between the input side (engine speed) and output side (input turbine speed) of the torque converter when the TCM commands lock-up.
(Engine speed is at least 70 rpm more than input turbine speed.)
The TCM uses the signals from the throttle position sensor, air flow meter, input turbine speed sensor, output speed sensor and crankshaft position sensor to monitor the engagement condition of the lock-up clutch.
The TCM compares the engagement condition of the lock-up clutch with the lock-up schedule in the TCM memory to detect shift solenoid valve SLU, valve body and torque converter mechanical problems.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2757 | Lock-up does not occur when requested (2-trip detection logic). | Shift solenoid valve SLU remains open or closed Transmission valve body assembly is blocked Torque converter assembly Automatic transaxle assembly (clutch, brake, gear, etc.) Line pressure is too low |
Torque converter lock-up is controlled by the TCM based on the input turbine speed sensor (speed sensor NT), output speed sensor (speed sensor NC), engine speed, engine load, engine temperature, vehicle speed, ATF temperature and gear selection. The TCM determines the lock-up status of the torque converter by comparing the engine speed (NE) to the input turbine speed (NT). The TCM calculates the actual transmission gear by comparing the input turbine speed (NT) to the output shaft speed (NC). When conditions are appropriate, the TCM requests "lock-up" by applying control voltage to shift solenoid valve SLU. When shift solenoid valve SLU is turned on, it applies pressure to the lock-up relay valve and locks the torque converter.
If the TCM detects no lock-up after lock-up has been requested or if it detects lock-up when it is not requested, the TCM interprets this as a fault in shift solenoid valve SLU or lock-up system performance.
The TCM will turn on the MIL and store the DTC.
Example
When the following is met, the system judges it to be a malfunction.
There is a difference in speed between the input side (engine speed) and output side (input turbine speed) of the torque converter when the TCM commands lock-up.
(Engine speed is at least 70 rpm more than input turbine speed.)
The amount of current flow to shift solenoid valve SLU is controlled by the TCM. The higher the current becomes, the higher the lock-up hydraulic pressure becomes during the lock-up operation.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2759 | Open or short is detected in the shift solenoid valve SLU circuit for 1 second or more while driving (1-trip detection logic). | Open or short in shift solenoid valve SLU circuit Shift solenoid valve SLU TCM |
When an open or short in the shift solenoid valve SLU circuit is detected, the TCM determines there is a malfunction. The TCM will turn on the MIL and store the DTC.
The amount of current flow to shift solenoid valve SLU is controlled by the TCM. The higher the current becomes, the higher the lock-up hydraulic pressure becomes during the lock-up operation.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2759 | Open or short is detected in the shift solenoid valve SLU circuit for 1 second or more while driving (1-trip detection logic). | Open or short in shift solenoid valve SLU circuit Shift solenoid valve SLU TCM |
When an open or short in the shift solenoid valve SLU circuit is detected, the TCM determines there is a malfunction. The TCM will turn on the MIL and store the DTC.
Shift solenoid valve SL is turned on and off by signals from the TCM to control the hydraulic pressure acting on the lock-up relay valve, which then controls operation of the lock-up clutch.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2769 | TCM detects a short in the shift solenoid valve SL circuit when shift solenoid valve SL is operated (2-trip detection logic). | Short in shift solenoid valve SL circuit Shift solenoid valve SL TCM |
| P2770 | TCM detects an open in the shift solenoid valve SL circuit when shift solenoid valve SL is not operated (2-trip detection logic). | Open in shift solenoid valve SL circuit Shift solenoid valve SL TCM |
Fail-safe function
If the TCM detects a malfunction, it turns shift solenoid valve SL off.
Based on the signals from the throttle position sensor, air flow meter and crankshaft position sensor, the TCM sends a signal to shift solenoid valve SL to regulate the hydraulic pressure and provide smooth torque converter engagement. Shift solenoid valve SL responds to commands from the TCM. The valve controls the lock-up relay valve to perform the torque-converter lock-up function. If the TCM detects an open or short circuit for shift solenoid valve SL, it will illuminate the MIL and store the DTC.
Shift solenoid valve SL is turned on and off by signals from the TCM to control the hydraulic pressure acting on the lock-up relay valve, which then controls operation of the lock-up clutch.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2769 | TCM detects a short in the shift solenoid valve SL circuit when shift solenoid valve SL is operated (2-trip detection logic). | Short in shift solenoid valve SL circuit Shift solenoid valve SL TCM |
| P2770 | TCM detects an open in the shift solenoid valve SL circuit when shift solenoid valve SL is not operated (2-trip detection logic). | Open in shift solenoid valve SL circuit Shift solenoid valve SL TCM |
Fail-safe function
If the TCM detects a malfunction, it turns shift solenoid valve SL off.
Based on the signals from the throttle position sensor, air flow meter and crankshaft position sensor, the TCM sends a signal to shift solenoid valve SL to regulate the hydraulic pressure and provide smooth torque converter engagement. Shift solenoid valve SL responds to commands from the TCM. The valve controls the lock-up relay valve to perform the torque-converter lock-up function. If the TCM detects an open or short circuit for shift solenoid valve SL, it will illuminate the MIL and store the DTC.
The TCM uses the vehicle speed signal and signals from the transmission speed sensors (NC, NT) to detect the actual gear (1st, 2nd, 3rd, 4th, 5th or 6th gear).
Then the TCM compares the actual gear with the shift schedule in the TCM memory to detect mechanical problems of the shift solenoid valves and valve body.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2808 | Either condition is met (2-trip detection logic): The engine revs freely when a shift to 3rd or 5th gear is commanded. The condition that 4th gear is engaged when a shift to 4th gear is commanded occurs twice, and one of the following conditions is met: When a shift to 1st gear is commanded, 3rd gear is engaged. When a shift to 2nd gear is commanded, 3rd gear is engaged. When a shift to 6th gear is commanded, 5th gear is engaged. | Shift solenoid valve SL4 remains open or closed Transmission valve body assembly is blocked Automatic transaxle assembly (clutch, brake, gear, etc.) |
The TCM commands gear shifts by turning the shift solenoid valves on and off. According to the input shaft speed, intermediate (counter) shaft speed and output shaft speed, the TCM detects the actual gear (1st, 2nd, 3rd, 4th, 5th or 6th gear). When the gear commanded by the TCM and the actual gear are not the same, the TCM illuminates the MIL and stores the DTC.
The TCM uses the vehicle speed signal and signals from the transmission speed sensors (NC, NT) to detect the actual gear (1st, 2nd, 3rd, 4th, 5th or 6th gear).
Then the TCM compares the actual gear with the shift schedule in the TCM memory to detect mechanical problems of the shift solenoid valves and valve body.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2808 | Either condition is met (2-trip detection logic): The engine revs freely when a shift to 3rd or 5th gear is commanded. The condition that 4th gear is engaged when a shift to 4th gear is commanded occurs twice, and one of the following conditions is met: When a shift to 1st gear is commanded, 3rd gear is engaged. When a shift to 2nd gear is commanded, 3rd gear is engaged. When a shift to 6th gear is commanded, 5th gear is engaged. | Shift solenoid valve SL4 remains open or closed Transmission valve body assembly is blocked Automatic transaxle assembly (clutch, brake, gear, etc.) |
The TCM commands gear shifts by turning the shift solenoid valves on and off. According to the input shaft speed, intermediate (counter) shaft speed and output shaft speed, the TCM detects the actual gear (1st, 2nd, 3rd, 4th, 5th or 6th gear). When the gear commanded by the TCM and the actual gear are not the same, the TCM illuminates the MIL and stores the DTC.
Shifting from 1st to 6th is performed by the TCM turning shift solenoid valves SL1, SL2, SL3, SL4 and SL on and off. If an open or short circuit occurs in any of the shift solenoid valves, the TCM controls the remaining normal shift solenoid valves to allow the vehicle to be operated. Refer to FAIL-SAFE CHART [05/2013 - ] .
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2810 | An open or short circuit (output signal duty is 0% or 100%) is detected by the TCM in the shift solenoid valve SL4 circuit while driving and shifting gears (SL4 output signal duty is more than 0% and less than 100% under normal conditions) (1-trip detection logic). | Open or short in shift solenoid valve SL4 circuit Shift solenoid valve SL4 TCM |
The TCM commands gear shifts by turning the shift solenoid valves on or off. When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem, illuminates the MIL and stores the DTC. The TCM also performs the fail-safe function and turns the other normal shift solenoid valves on or off (in case of an open or short circuit, the TCM stops sending current to the circuit). Refer to FAIL-SAFE CHART [05/2013 - ] .
Shifting from 1st to 6th is performed by the TCM turning shift solenoid valves SL1, SL2, SL3, SL4 and SL on and off. If an open or short circuit occurs in any of the shift solenoid valves, the TCM controls the remaining normal shift solenoid valves to allow the vehicle to be operated. Refer to FAIL-SAFE CHART [05/2013 - ] .
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2810 | An open or short circuit (output signal duty is 0% or 100%) is detected by the TCM in the shift solenoid valve SL4 circuit while driving and shifting gears (SL4 output signal duty is more than 0% and less than 100% under normal conditions) (1-trip detection logic). | Open or short in shift solenoid valve SL4 circuit Shift solenoid valve SL4 TCM |
The TCM commands gear shifts by turning the shift solenoid valves on or off. When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem, illuminates the MIL and stores the DTC. The TCM also performs the fail-safe function and turns the other normal shift solenoid valves on or off (in case of an open or short circuit, the TCM stops sending current to the circuit). Refer to FAIL-SAFE CHART [05/2013 - ] .
The ECM communicates with the TCM using the Controller Area Network (CAN).
If there is a problem with this communication, the TCM stores a DTC.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0100 | All conditions are met for 1.25 seconds (1-trip detection logic): Ignition switch is ON. Battery voltage is 10.5 V or higher. No communication between the ECM and TCM. | Harness or connector ECM TCM |
The ECM communicates with the TCM using the Controller Area Network (CAN).
If there is a problem with this communication, the TCM stores a DTC.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0100 | All conditions are met for 1.25 seconds (1-trip detection logic): Ignition switch is ON. Battery voltage is 10.5 V or higher. No communication between the ECM and TCM. | Harness or connector ECM TCM |
After moving the shift lever to S, it is possible to switch the shift range between "1" (S1 range) and "6" (S6 range) using the transmission control switch.
Moving the shift lever to "+" once raises the shift range by one, and moving the shift lever to "-" once lowers the shift range by one.
Scheme 396
Scheme 397
Scheme 398
- INSPECT TRANSMISSION CONTROL SWITCH Disconnect the transmission control switch connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 6 (IG) - 13 (S) Shift lever in S, "+" or "-" Below 1 ohms 5 (SFTU) - 11 (E) Shift lever held in "+" (Up-shift) Below 1 ohms 4 (SFTD) - 11 (E) Shift lever held in "-" (Down-shift) Below 1 ohms 6 (IG) - 13 (S) Shift lever not in S, "+" or "-" 10 kohms or higher 5 (SFTU) - 11 (E) Shift lever in S 10 kohms or higher 4 (SFTD) - 11 (E) Shift lever in S 10 kohms or higher TEXT IN ILLUSTRATION *a Component without harness connected (Transmission Control Switch) NG --> See step 4 OK: Go to next step
- CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BATTERY AND BODY GROUND) Disconnect the transmission control switch connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C47-6 (IG) - Body ground Ignition switch ON 11 to 14 V C47-6 (IG) - Body ground Ignition switch off Below 1 V Turn the ignition switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C47-11 (E) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Transmission Control Switch) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
- CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM) Disconnect the ECM connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A35-14 (S) - Body ground Ignition switch ON Shift lever in S, "+" or "-" 11 to 14 V A35-14 (S) - Body ground Ignition switch ON Shift lever not in S, "+" or "-" Below 1 V Turn the ignition switch off. Disconnect the spiral cable with sensor sub-assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A35-16 (SFTU) - Body ground Shift lever held in "+" (Up-shift) Below 1 ohms A35-51 (SFTD) - Body ground Shift lever held in "-" (Down-shift) Below 1 ohms A35-16 (SFTU) - Body ground Shift lever in S 10 kohms or higher A35-51 (SFTD) - Body ground Shift lever in S 10 kohms or higher TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 5
- REPLACE TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY). Refer to «REMOVAL [05/2013 - ]»(ref-615232-S04844259282014050900000)
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [05/2013 - 01/2014]»(ref-615254-S10837499842014050900000)
After moving the shift lever to S, it is possible to switch the shift range between "1" (S1 range) and "6" (S6 range) using the transmission control switch.
Moving the shift lever to "+" once raises the shift range by one, and moving the shift lever to "-" once lowers the shift range by one.
When the shift lever is in S, the shift range can be changed using the shift paddle switches. It is also possible to select the shift range when the vehicle is being driven with the shift lever in D by operating the shift paddle switches.
Scheme 399
Scheme 400
Scheme 401
- CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - BODY GROUND) Disconnect the spiral cable connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C8-2 (ECC) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Spiral Cable with Sensor Sub-assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
- INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY Remove the spiral cable with sensor sub-assembly. Refer to «REMOVAL [05/2013 - 01/2014]»(ref-615288-S13740240642014050900000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition z21-2 (SUP) - C8-9 (SUP) Always Below 1 ohms z21-3 (SDN) - C8-10 (SDN) Always Below 1 ohms z21-6 (ECC) - C8-2 (ECC) Always Below 1 ohms TEXT IN ILLUSTRATION *a Component without harness connected (Spiral Cable with Sensor Sub-assembly) NG --> See step 7 OK: Go to next step
- INSPECT TRANSMISSION SHIFT SWITCH ASSEMBLY (LH (-) AND RH (+)) Remove the transmission shift switch assembly. Refer to «REMOVAL [05/2013 - 01/2014]»(ref-615232-S32959098812014050900000) . Measure the resistance according to the value(s) in the table below. Standard Resistance FOR LH Tester Connection Switch Condition Specified Condition SDN - ECC "-" shift paddle operated and held (down-shift) Below 2.5 ohms SDN - ECC1 "-" shift paddle operated and held (down-shift) Below 2.5 ohms SDN - ECC "-" shift paddle not operated (down-shift) 1 Mohms or higher SDN - ECC1 "-" shift paddle not operated (down-shift) 1 Mohms or higher FOR RH Tester Connection Switch Condition Specified Condition SUP - ECC1 "+" shift paddle operated and held (up-shift) Below 2.5 ohms SUP - ECC1 "+" shift paddle not operated (up-shift) 1 Mohms or higher TEXT IN ILLUSTRATION *A for LH *B for RH *a Component without harness connected (Transmission Shift Switch Assembly) NG --> See step 8 OK: Go to next step
- INSPECT NO. 1 SWITCH WIRE Disconnect the No. 1 switch wire connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition SDN - ECC "-" shift paddle operated and held (down-shift) Below 2.5 ohms SUP - ECC "+" shift paddle operated and held (up-shift) Below 2.5 ohms SDN - ECC "-" shift paddle not operated (down-shift) 1 Mohms or higher SUP - ECC "+" shift paddle not operated (up-shift) 1 Mohms or higher TEXT IN ILLUSTRATION *a Component without harness connected (No. 1 Switch Wire) NG --> See step 10 OK: Go to next step
- INSPECT STEERING PAD SWITCH LH Disconnect the steering pad switch LH connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition z21-2 (SUP) - z21-6 (ECC) "+" shift paddle operated and held (up-shift) Below 2.5 ohms z21-3 (SDN) - z21-6 (ECC) "-" shift paddle operated and held (down-shift) Below 2.5 ohms z21-2 (SUP) - z21-6 (ECC) "+" shift paddle not operated (up-shift) 1 Mohms or higher z21-3 (SDN) - z21-6 (ECC) "-" shift paddle not operated (down-shift) 1 Mohms or higher TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Spiral Cable with Sensor Sub-assembly) NG --> See step 11 OK: Go to next step
- CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - ECM) Disconnect the ECM connector. Disconnect the transmission control switch (shift lock control unit assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition A35-16 (SFTU) - Body ground "+" shift paddle operated and held (up-shift) Below 2.5 ohms A35-51 (SFTD) - Body ground "-" shift paddle operated and held (down-shift) Below 2.5 ohms A35-16 (SFTU) - Body ground "+" shift paddle not operated (up-shift) 1 Mohms or higher A35-51 (SFTD) - Body ground "-" shift paddle not operated (down-shift) 1 Mohms or higher TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 9
- REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY. Refer to «REMOVAL [05/2013 - 01/2014]»(ref-615288-S13740240642014050900000)
- REPLACE TRANSMISSION SHIFT SWITCH ASSEMBLY. Refer to «REMOVAL [05/2013 - 01/2014]»(ref-615232-S32959098812014050900000)
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [05/2013 - 01/2014]»(ref-615254-S10837499842014050900000)
- REPLACE NO. 1 SWITCH WIRE. Refer to «REMOVAL [05/2013 - 01/2014]»(ref-615232-S32959098812014050900000)
- REPLACE STEERING PAD SWITCH LH. Refer to «REMOVAL [05/2013 - 01/2014]»(ref-615232-S32959098812014050900000)
When the shift lever is in S, the shift range can be changed using the shift paddle switches. It is also possible to select the shift range when the vehicle is being driven with the shift lever in D by operating the shift paddle switches.
When the ignition switch is turned to ON, voltage from the MREL terminal of the ECM is applied to the EFI NO. 1 relay. This causes the contacts of the EFI NO. 1 relay to close, which supplies power to terminal +B of the TCM.
When the ignition switch is turned to ON, voltage from the MREL terminal of the ECM is applied to the EFI NO. 1 relay. This causes the contacts of the EFI NO. 1 relay to close, which supplies power to terminal +B of the TCM.